# include <stdio.h>
# include <stdlib.h>

void fileinit()
{
	char s[128] = "dE#Fg45#-)8[|}" ;	
	int i = 0;
	FILE *from;

	for(i = 0; s[i]; i ++)
		s[i] -= 3;
	from=fopen("from.txt","w");
	fputs(s, from);
	fclose(from);
}

int main()
{
	FILE *from,*to;
	char ch;
	fileinit();
	from=fopen("from.txt","r");
	to=fopen("to.txt","w+");
	while((ch=fgetc(from))!=EOF)
	{
		if(ch<'0'||ch>'9')
		fputc(ch,to);
	}
	rewind(to);
	while((ch=fgetc(to))!=EOF)
	{
		printf("%c",ch);
	}
	_fclsoeall();
	return 0;
}
